John h



l. H. ANGEL.

' PRESS PLATE.

ATION FILE APPLI D ram/15,1919. vv 'I 1,349,544. Patented Aug. 10, 1920.

Flyin I E?, 2 I 22 l5 34' 0 I /o l.. llL y 1% z Fig. 5

/20 n fnl/enfor- .fdrffl f/gel -35/ MJ www the plunger of a hydraulic p'ressflof any well the plunger is appliedfwhile they 'have ag UNITED i y y, l.Torna rLfANGEIfOfMINivnPOLIs; MrNNEsoTAQ `Preuss-111.31113. 1

To all whomz't maycoaccrn K citizen of the United`States`,fresiding at Min-1 neapolis,^in the county of Hennepinand' State of Minnesota, have invented certain newy and useful Improvements yin Fress-4 Plates, of which .the following isa speci-,f fication. @y K n n My invention relates to press plates for expressing presses and anobject is y to `pr0` f vide press plates which will prevent oily meal cakes from spreading and which will cause the oil to be expressed in a thorough manner.

rlhe full objects and advantages 'of myinf'- v vention will appear in connectionwithy the kbe particularly pointed. out'inthe claims.

Referring to the dravvings',-y F'gure lis a side view, partly y ofa press. Fig. 2 is a top fplan viewvof my press plate. Fig. 3gis aview in vertical sec-l tion of va portionofitwo kpress plates inf-.,cofzj operative relation. Fig. 4 isa vievsr` inverli y y.providedwith the gutters 36 runsinto the gutters 34 andthe roil which escapes at thel tical section at right angles to Fig. l. As shown in the drawings, 10 vdesignates known form, the press being providedy with four corner posts 12 and having .a top member 14. A plurality ofpress plates 16 .arev employed in the press, these plates beingr connected in such mannerv that they are capa-k ble of movement towardeach other whenr limited movement from eachother kwhen the pressure is relieved.4 *Toy provide for this operation opposite sidesy of the plates are provided with bolts 18,`the bolts of adf jacent plates being connectediby links 20 held thereon for sliding movement bythe heads of the bolts. The bolts andlinksjof successive plates are arrangedinstaggered relation, as shown in Fig. 1, vso as tol permit.

yor bolts 26. The marginalportions of thef members 24 are thicker than the middle por-V specimen@ of rfciei'rssratem.

inV section, l

pwhich havebeen referred to.

margins andk corrugations of the press plates `of the .members 24 which lie i within the beveled margins* arey yprovided with transve'rsef"corrugations 30 and from the de- PetentdAug-l;1192 Application-ineanayiegiieie.`, seriarnaeszeesf f f f 'y `tions thereof yand thesemar inal ortionsf f Be it known that I, JOHNH; ANGEL,a a g p pressed portions of the corrugations, grooves sides `of thepress plates inthe upper surfaces thereof. Thefgutters 34 lat one end are connectedby across gutter 3,6 and the gut-V.` yters 34 at theother end are open so that the oily .candrain off` into troughs in the usual -\vay.1 n 1 a l rIn operation oil meal cakes38, from which the oil istofbe expressed, are provided on theirk tops and bottoms with press cloths40 and the vcakes .arey introduced between successive press plateswhile the plunger of the pressis retractedf Upon applying Vpressure extend throughv the beveled margins so as"A to permit oil toflowinto gutters 34 at the by meansof thel plunger, thefoil 1s squeezed.

out of: thek cakes,y and escapes through the Vgrooves 32 into the gutters 34 at the sides. rThe oil which escapes at the end which is sok other end drains-directly into the troughs V The beveled prevent the cakes from spreading beyond the limits of the press plates and cause the oil to be expressed morethoroughly.` The effect of the beveled marginsis'to force the material, ofwhich thecakes is'composed, inwardly,

A9or l more efficient squeezing action is atg tained by means of the corrugations. When the kpressing of the 'cakes has been completed, f i

j the plunger is retractedand the press plates ,gravitate from eachl other by va movement `limited bythe linksy 20. [The cakeswhich have been pressed are then removed, thepress having its. opposite facesy provided with' corr'cloths preventing n the `material from ladherv A 1 ing to ,the plates.

sliding movement of the links. "Theoppo v vsite sides of the plates are also provided withk notches 22 in which the inner surface ofthe i;- posts 12 engage to retain' the plates *in rugations and [its upper 'f face v, voutside of the" corrugations provided .with gutters co'njy ynected by grooves with fthe corrugations. 'l

they depressions of A press plate yfor expressing presses having its opposite faces provided with "transversecorrugations andits upper face outside of the corrugations kprovided with.' longitudinal gutters connected` by grooves with vthe VVdepressions of the 'corrugations g p I Y 1,349,544

3. AY press plete for expressing presses surface outside of the pressing surface prohaving its opposite feces" provided Witn-A vided Iwith. longitudinal gutters connected l0 pressing surfaces, the margins of which are with the depressions of the corrugations by beveled so as to rlesive the peripheryY .'o'f grooves extending through said beveled greater thiclmess'then the rest of the pressmargins.

y ing surface, and transverse corrugations Y In teSlIDOIly whereof l hereunto affix my formed inthe pressing surfaces lying Within Signature.

said beveled margins und having the upper JOHN H. ANGEL. 

